Initial commit from Irremote.zip

examples/IRrecord/IRrecord.pde

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+/*
+ * IRrecord: record and play back IR signals as a minimal 
+ * An IR detector/demodulator must be connected to the input RECV_PIN.
+ * An IR LED must be connected to the output PWM pin 3.
+ * A button must be connected to the input BUTTON_PIN; this is the
+ * send button.
+ * A visible LED can be connected to STATUS_PIN to provide status.
+ *
+ * The logic is:
+ * If the button is pressed, send the IR code.
+ * If an IR code is received, record it.
+ *
+ * Version 0.11 September, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ */
+
+#include <IRremote.h>
+
+int RECV_PIN = 11;
+int BUTTON_PIN = 12;
+int STATUS_PIN = 13;
+
+IRrecv irrecv(RECV_PIN);
+IRsend irsend;
+
+decode_results results;
+
+void setup()
+{
+  Serial.begin(9600);
+  irrecv.enableIRIn(); // Start the receiver
+  pinMode(BUTTON_PIN, INPUT);
+  pinMode(STATUS_PIN, OUTPUT);
+}
+
+// Storage for the recorded code
+int codeType = -1; // The type of code
+unsigned long codeValue; // The code value if not raw
+unsigned int rawCodes[RAWBUF]; // The durations if raw
+int codeLen; // The length of the code
+int toggle = 0; // The RC5/6 toggle state
+
+// Stores the code for later playback
+// Most of this code is just logging
+void storeCode(decode_results *results) {
+  codeType = results->decode_type;
+  int count = results->rawlen;
+  if (codeType == UNKNOWN) {
+    Serial.println("Received unknown code, saving as raw");
+    codeLen = results->rawlen - 1;
+    // To store raw codes:
+    // Drop first value (gap)
+    // Convert from ticks to microseconds
+    // Tweak marks shorter, and spaces longer to cancel out IR receiver distortion
+    for (int i = 1; i <= codeLen; i++) {
+      if (i % 2) {
+        // Mark
+        rawCodes[i - 1] = results->rawbuf[i]*USECPERTICK - MARK_EXCESS;
+        Serial.print(" m");
+      } 
+      else {
+        // Space
+        rawCodes[i - 1] = results->rawbuf[i]*USECPERTICK + MARK_EXCESS;
+        Serial.print(" s");
+      }
+      Serial.print(rawCodes[i - 1], DEC);
+    }
+    Serial.println("");
+  }
+  else {
+    if (codeType == NEC) {
+      Serial.print("Received NEC: ");
+      if (results->value == REPEAT) {
+        // Don't record a NEC repeat value as that's useless.
+        Serial.println("repeat; ignoring.");
+        return;
+      }
+    } 
+    else if (codeType == SONY) {
+      Serial.print("Received SONY: ");
+    } 
+    else if (codeType == RC5) {
+      Serial.print("Received RC5: ");
+    } 
+    else if (codeType == RC6) {
+      Serial.print("Received RC6: ");
+    } 
+    else {
+      Serial.print("Unexpected codeType ");
+      Serial.print(codeType, DEC);
+      Serial.println("");
+    }
+    Serial.println(results->value, HEX);
+    codeValue = results->value;
+    codeLen = results->bits;
+  }
+}
+
+void sendCode(int repeat) {
+  if (codeType == NEC) {
+    if (repeat) {
+      irsend.sendNEC(REPEAT, codeLen);
+      Serial.println("Sent NEC repeat");
+    } 
+    else {
+      irsend.sendNEC(codeValue, codeLen);
+      Serial.print("Sent NEC ");
+      Serial.println(codeValue, HEX);
+    }
+  } 
+  else if (codeType == SONY) {
+    irsend.sendSony(codeValue, codeLen);
+    Serial.print("Sent Sony ");
+    Serial.println(codeValue, HEX);
+  } 
+  else if (codeType == RC5 || codeType == RC6) {
+    if (!repeat) {
+      // Flip the toggle bit for a new button press
+      toggle = 1 - toggle;
+    }
+    // Put the toggle bit into the code to send
+    codeValue = codeValue & ~(1 << (codeLen - 1));
+    codeValue = codeValue | (toggle << (codeLen - 1));
+    if (codeType == RC5) {
+      Serial.print("Sent RC5 ");
+      Serial.println(codeValue, HEX);
+      irsend.sendRC5(codeValue, codeLen);
+    } 
+    else {
+      irsend.sendRC6(codeValue, codeLen);
+      Serial.print("Sent RC6 ");
+      Serial.println(codeValue, HEX);
+    }
+  } 
+  else if (codeType == UNKNOWN /* i.e. raw */) {
+    // Assume 38 KHz
+    irsend.sendRaw(rawCodes, codeLen, 38);
+    Serial.println("Sent raw");
+  }
+}
+
+int lastButtonState;
+
+void loop() {
+  // If button pressed, send the code.
+  int buttonState = digitalRead(BUTTON_PIN);
+  if (lastButtonState == HIGH && buttonState == LOW) {
+    Serial.println("Released");
+    irrecv.enableIRIn(); // Re-enable receiver
+  }
+
+  if (buttonState) {
+    Serial.println("Pressed, sending");
+    digitalWrite(STATUS_PIN, HIGH);
+    sendCode(lastButtonState == buttonState);
+    digitalWrite(STATUS_PIN, LOW);
+    delay(50); // Wait a bit between retransmissions
+  } 
+  else if (irrecv.decode(&results)) {
+    digitalWrite(STATUS_PIN, HIGH);
+    storeCode(&results);
+    irrecv.resume(); // resume receiver
+    digitalWrite(STATUS_PIN, LOW);
+  }
+  lastButtonState = buttonState;
+}
+
+
+
+
+
+
+

examples/IRrecvDemo/IRrecvDemo.pde

@@ -0,0 +1,28 @@
+/*
+ * IRremote: IRrecvDemo - demonstrates receiving IR codes with IRrecv
+ * An IR detector/demodulator must be connected to the input RECV_PIN.
+ * Version 0.1 July, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ */
+
+#include <IRremote.h>
+
+int RECV_PIN = 11;
+
+IRrecv irrecv(RECV_PIN);
+
+decode_results results;
+
+void setup()
+{
+  Serial.begin(9600);
+  irrecv.enableIRIn(); // Start the receiver
+}
+
+void loop() {
+  if (irrecv.decode(&results)) {
+    Serial.println(results.value, HEX);
+    irrecv.resume(); // Receive the next value
+  }
+}

examples/IRrecvDump/IRrecvDump.pde

@@ -0,0 +1,74 @@
+/*
+ * IRremote: IRrecvDump - dump details of IR codes with IRrecv
+ * An IR detector/demodulator must be connected to the input RECV_PIN.
+ * Version 0.1 July, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ */
+
+#include <IRremote.h>
+
+int RECV_PIN = 11;
+
+IRrecv irrecv(RECV_PIN);
+
+decode_results results;
+
+void setup()
+{
+  Serial.begin(9600);
+  irrecv.enableIRIn(); // Start the receiver
+}
+
+// Dumps out the decode_results structure.
+// Call this after IRrecv::decode()
+// void * to work around compiler issue
+//void dump(void *v) {
+//  decode_results *results = (decode_results *)v
+void dump(decode_results *results) {
+  int count = results->rawlen;
+  if (results->decode_type == UNKNOWN) {
+    Serial.println("Could not decode message");
+  } 
+  else {
+    if (results->decode_type == NEC) {
+      Serial.print("Decoded NEC: ");
+    } 
+    else if (results->decode_type == SONY) {
+      Serial.print("Decoded SONY: ");
+    } 
+    else if (results->decode_type == RC5) {
+      Serial.print("Decoded RC5: ");
+    } 
+    else if (results->decode_type == RC6) {
+      Serial.print("Decoded RC6: ");
+    }
+    Serial.print(results->value, HEX);
+    Serial.print(" (");
+    Serial.print(results->bits, DEC);
+    Serial.println(" bits)");
+  }
+  Serial.print("Raw (");
+  Serial.print(count, DEC);
+  Serial.print("): ");
+
+  for (int i = 0; i < count; i++) {
+    if ((i % 2) == 1) {
+      Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
+    } 
+    else {
+      Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
+    }
+    Serial.print(" ");
+  }
+  Serial.println("");
+}
+
+
+void loop() {
+  if (irrecv.decode(&results)) {
+    Serial.println(results.value, HEX);
+    dump(&results);
+    irrecv.resume(); // Receive the next value
+  }
+}

examples/IRrelay/IRrelay.pde

@@ -0,0 +1,85 @@
+/*
+ * IRremote: IRrecvDemo - demonstrates receiving IR codes with IRrecv
+ * An IR detector/demodulator must be connected to the input RECV_PIN.
+ * Version 0.1 July, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ */
+
+#include <IRremote.h>
+
+int RECV_PIN = 11;
+int RELAY_PIN = 4;
+
+IRrecv irrecv(RECV_PIN);
+decode_results results;
+
+// Dumps out the decode_results structure.
+// Call this after IRrecv::decode()
+// void * to work around compiler issue
+//void dump(void *v) {
+//  decode_results *results = (decode_results *)v
+void dump(decode_results *results) {
+  int count = results->rawlen;
+  if (results->decode_type == UNKNOWN) {
+    Serial.println("Could not decode message");
+  } 
+  else {
+    if (results->decode_type == NEC) {
+      Serial.print("Decoded NEC: ");
+    } 
+    else if (results->decode_type == SONY) {
+      Serial.print("Decoded SONY: ");
+    } 
+    else if (results->decode_type == RC5) {
+      Serial.print("Decoded RC5: ");
+    } 
+    else if (results->decode_type == RC6) {
+      Serial.print("Decoded RC6: ");
+    }
+    Serial.print(results->value, HEX);
+    Serial.print(" (");
+    Serial.print(results->bits, DEC);
+    Serial.println(" bits)");
+  }
+  Serial.print("Raw (");
+  Serial.print(count, DEC);
+  Serial.print("): ");
+
+  for (int i = 0; i < count; i++) {
+    if ((i % 2) == 1) {
+      Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
+    } 
+    else {
+      Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
+    }
+    Serial.print(" ");
+  }
+  Serial.println("");
+}
+
+void setup()
+{
+  pinMode(RELAY_PIN, OUTPUT);
+  pinMode(13, OUTPUT);
+    Serial.begin(9600);
+  irrecv.enableIRIn(); // Start the receiver
+}
+
+int on = 0;
+unsigned long last = millis();
+
+void loop() {
+  if (irrecv.decode(&results)) {
+    // If it's been at least 1/4 second since the last
+    // IR received, toggle the relay
+    if (millis() - last > 250) {
+      on = !on;
+      digitalWrite(RELAY_PIN, on ? HIGH : LOW);
+      digitalWrite(13, on ? HIGH : LOW);
+      dump(&results);
+    }
+    last = millis();      
+    irrecv.resume(); // Receive the next value
+  }
+}

examples/IRsendDemo/IRsendDemo.pde

@@ -0,0 +1,26 @@
+/*
+ * IRremote: IRsendDemo - demonstrates sending IR codes with IRsend
+ * An IR LED must be connected to Arduino PWM pin 3.
+ * Version 0.1 July, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ */
+
+#include <IRremote.h>
+
+IRsend irsend;
+
+void setup()
+{
+  Serial.begin(9600);
+}
+
+void loop() {
+  if (Serial.read() != -1) {
+    for (int i = 0; i < 3; i++) {
+      irsend.sendSony(0xa90, 12); // Sony TV power code
+      delay(100);
+    }
+  }
+}
+

examples/IRtest/IRtest.pde

@@ -0,0 +1,190 @@
+/*
+ * IRremote: IRtest unittest
+ * Version 0.1 July, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ *
+ * Note: to run these tests, edit IRremote/IRremote.h to add "#define TEST"
+ * You must then recompile the library by removing IRremote.o and restarting
+ * the arduino IDE.
+ */
+
+#include <IRremote.h>
+#include <IRremoteInt.h>
+
+// Dumps out the decode_results structure.
+// Call this after IRrecv::decode()
+// void * to work around compiler issue
+//void dump(void *v) {
+//  decode_results *results = (decode_results *)v
+void dump(decode_results *results) {
+  int count = results->rawlen;
+  if (results->decode_type == UNKNOWN) {
+    Serial.println("Could not decode message");
+  } 
+  else {
+    if (results->decode_type == NEC) {
+      Serial.print("Decoded NEC: ");
+    } 
+    else if (results->decode_type == SONY) {
+      Serial.print("Decoded SONY: ");
+    } 
+    else if (results->decode_type == RC5) {
+      Serial.print("Decoded RC5: ");
+    } 
+    else if (results->decode_type == RC6) {
+      Serial.print("Decoded RC6: ");
+    }
+    Serial.print(results->value, HEX);
+    Serial.print(" (");
+    Serial.print(results->bits, DEC);
+    Serial.println(" bits)");
+  }
+  Serial.print("Raw (");
+  Serial.print(count, DEC);
+  Serial.print("): ");
+
+  for (int i = 0; i < count; i++) {
+    if ((i % 2) == 1) {
+      Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
+    } 
+    else {
+      Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
+    }
+    Serial.print(" ");
+  }
+  Serial.println("");
+}
+
+IRrecv irrecv(0);
+decode_results results;
+
+class IRsendDummy : 
+public IRsend
+{
+public:
+  // For testing, just log the marks/spaces
+#define SENDLOG_LEN 128
+  int sendlog[SENDLOG_LEN];
+  int sendlogcnt;
+  IRsendDummy() : 
+  IRsend() {
+  }
+  void reset() {
+    sendlogcnt = 0;
+  }
+  void mark(int time) {
+    sendlog[sendlogcnt] = time;
+    if (sendlogcnt < SENDLOG_LEN) sendlogcnt++;
+  }
+  void space(int time) {
+    sendlog[sendlogcnt] = -time;
+    if (sendlogcnt < SENDLOG_LEN) sendlogcnt++;
+  }
+  // Copies the dummy buf into the interrupt buf
+  void useDummyBuf() {
+    int last = SPACE;
+    irparams.rcvstate = STATE_STOP;
+    irparams.rawlen = 1; // Skip the gap
+    for (int i = 0 ; i < sendlogcnt; i++) {
+      if (sendlog[i] < 0) {
+        if (last == MARK) {
+          // New space
+          irparams.rawbuf[irparams.rawlen++] = (-sendlog[i] - MARK_EXCESS) / USECPERTICK;
+          last = SPACE;
+        } 
+        else {
+          // More space
+          irparams.rawbuf[irparams.rawlen - 1] += -sendlog[i] / USECPERTICK;
+        }
+      } 
+      else if (sendlog[i] > 0) {
+        if (last == SPACE) {
+          // New mark
+          irparams.rawbuf[irparams.rawlen++] = (sendlog[i] + MARK_EXCESS) / USECPERTICK;
+          last = MARK;
+        } 
+        else {
+          // More mark
+          irparams.rawbuf[irparams.rawlen - 1] += sendlog[i] / USECPERTICK;
+        }
+      }
+    }
+    if (irparams.rawlen % 2) {
+      irparams.rawlen--; // Remove trailing space
+    }
+  }
+};
+
+IRsendDummy irsenddummy;
+
+void verify(unsigned long val, int bits, int type) {
+  irsenddummy.useDummyBuf();
+  irrecv.decode(&results);
+  Serial.print("Testing ");
+  Serial.print(val, HEX);
+  if (results.value == val && results.bits == bits && results.decode_type == type) {
+    Serial.println(": OK");
+  } 
+  else {
+    Serial.println(": Error");
+    dump(&results);
+  }
+}  
+
+void testNEC(unsigned long val, int bits) {
+  irsenddummy.reset();
+  irsenddummy.sendNEC(val, bits);
+  verify(val, bits, NEC);
+}
+void testSony(unsigned long val, int bits) {
+  irsenddummy.reset();
+  irsenddummy.sendSony(val, bits);
+  verify(val, bits, SONY);
+}
+void testRC5(unsigned long val, int bits) {
+  irsenddummy.reset();
+  irsenddummy.sendRC5(val, bits);
+  verify(val, bits, RC5);
+}
+void testRC6(unsigned long val, int bits) {
+  irsenddummy.reset();
+  irsenddummy.sendRC6(val, bits);
+  verify(val, bits, RC6);
+}
+
+void test() {
+  Serial.println("NEC tests");
+  testNEC(0x00000000, 32);
+  testNEC(0xffffffff, 32);
+  testNEC(0xaaaaaaaa, 32);
+  testNEC(0x55555555, 32);
+  testNEC(0x12345678, 32);
+  Serial.println("Sony tests");
+  testSony(0xfff, 12);
+  testSony(0x000, 12);
+  testSony(0xaaa, 12);
+  testSony(0x555, 12);
+  testSony(0x123, 12);
+  Serial.println("RC5 tests");
+  testRC5(0xfff, 12);
+  testRC5(0x000, 12);
+  testRC5(0xaaa, 12);
+  testRC5(0x555, 12);
+  testRC5(0x123, 12);
+  Serial.println("RC6 tests");
+  testRC6(0xfffff, 20);
+  testRC6(0x00000, 20);
+  testRC6(0xaaaaa, 20);
+  testRC6(0x55555, 20);
+  testRC6(0x12345, 20);
+}
+
+void setup()
+{
+  Serial.begin(9600);
+  test();
+}
+
+void loop() {
+}